If the coefficients of `(2r + 4)th` and `(r - 2)th` terms in the expansion of `(1 + x)^18` are equal.Find `r` ?

If the coefficients of (2r + 4)th, (r - 2)th terms in the expansion of (1 + x)^18 are equal, find r.

(2) If the coefficients of (2r + 4)th, (r - 2)th terms in the expansion of (1 + x)^18 are equal, find r.

If the coefficient of (2r+4)th and (r-2)th terms in the expansion of (1+x)^(18) are equal, find r .

If the coefficients of (2r + 1)th term and (r + 2)th term in the expansion of (1 + x)^(48) are equal,find r .

Find the value of r , if the coefficients of (2r+4)th and (r-2) th terms in the expansion of (1+x)^(18) are equal .

Find the value of r, if the coefficients of (2r+4) -th and (r-2) -th terms in the expansion of (1+x)^(18) are equal.

If the coefficients of (r-5)^th and (2r - 1)^th terms in the expansion of (1 + x)^34 are equal, find r.

If the coefficients of (r-5)^(th) and (2r - 1)^(th) terms in the expansion of (1 + x)^34 are equal, find r.

If the coefficients of (r-5)^th and (2r - 1)^th terms in the expansion of (1 + x)^34 are equal, find r.